Speaker
Description
The LHCb experiment has undergone a major upgrade for Run 3 of the Large Hadron Collider, transitioning to a fully software-based trigger that processes proton–proton collisions at the full 30 MHz bunch-crossing rate. This paradigm shift removes the traditional hardware trigger and enables real-time event reconstruction and selection with offline-quality algorithms. In this contribution, we present the design, performance, and operational experience of LHCb’s real-time reconstruction during Run 3. Emphasis is placed on the handling of the high-throughput constraints, detector occupancies, and physics performance across a broad range of reconstruction tasks. We demonstrate that high-precision tracking, vertexing, and particle identification are achieved in real time. The success of real-time reconstruction at 30 MHz establishes a new standard for trigger systems at hadron colliders and provides valuable insights for future high-luminosity experiments.
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